18) What type of ecosystem is the Ohio River traveling between Ohio and West Virginia? A.) Estuary
B.) Freshwater
C.) Marine

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,

the answer is b.

hope it